Sodium benzoate is a substance which has the chemical formula NaC7H5O2. It is a widely used food preservative, with an E number ofE211. It is the sodium salt of benzoic acid and exists in this form when dissolved in water. It can be produced by reacting sodium hydroxide with benzoic acid.
Items of inspection
Index
Result of inspection
Identification
Passes test
Passes test
Content(dried substance)’w%
99.0-100.5
99.54
Appearance of solution
Lighter than Y6
Lighter than Y6
Acidity or alkalinity
Passes test
Passes test
Ionised Chlorine/ppm ≤
200
＜200
Total Chlorine/ppm ≤
300
＜300
Loss and drying ‘w% ≤
2.0
1.26
Heavy Metals ≤
10
＜10
1)As an excellent food preservative, can be used as the antiseptic sterilization of various food and beverage
2)As antiseptic sterilization of various drugs in pharmaceutical industry;
3)It can be used in the production of metal’s corrosion inhibitor and antioxidant;
4)Also used in plastic industry, paint and feed industry.
